A message queue identifier does not exist for the argument key and (msgflg & IPC_CREAT) is 0.

[ENOSPC]

A message queue identifier is to be created but the system-imposed limit on the maximum number of allowed message queue
identifiers system-wide would be exceeded.

The following sections are informative.

EXAMPLES

None.

APPLICATION USAGE

The POSIX Realtime Extension defines alternative interfaces for interprocess communication (IPC). Application developers who
need to use IPC should design their applications so that modules using the IPC routines described in XSI Interprocess Communication can be easily modified to use the alternative
interfaces.